| 发明名称 |
EXTERNAL EAR INSERT FOR HEARING COMPREHENSION ENHANCEMENT |
| 摘要 |
A simple hearing enhancement device that takes the normally adequately loud sound levels and optimizes selective frequency gain of the patient's ear passage to improve speech comprehension. |
| 申请公布号 |
CA2817889(A1) |
申请公布日期 |
2003.11.20 |
| 申请号 |
CA20032817889 |
申请日期 |
2003.05.12 |
| 申请人 |
KAH, CARL L. C., JR. |
发明人 |
KAH, CARL L. C., JR. |
| 分类号 |
H04R25/02;A61F11/00;H04R1/10;H04R25/00 |
主分类号 |
H04R25/02 |
| 代理机构 |
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